CN113586147A - Simple vibration damper in tunnel - Google Patents
Simple vibration damper in tunnel Download PDFInfo
- Publication number
- CN113586147A CN113586147A CN202111056079.6A CN202111056079A CN113586147A CN 113586147 A CN113586147 A CN 113586147A CN 202111056079 A CN202111056079 A CN 202111056079A CN 113586147 A CN113586147 A CN 113586147A
- Authority
- CN
- China
- Prior art keywords
- air
- air guide
- connecting rod
- tunnel
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims description 33
- 238000013016 damping Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the field of tunnel engineering, and particularly discloses a simple vibration damper in a tunnel, which comprises a mounting hole and an air deflector, wherein the mounting hole and the air deflector are formed in the inner wall of the tunnel; an annular first air guide groove is formed in the inner wall of the air guide cylinder, a second air guide groove is formed in the outer wall of the air guide plate, one end of the second air guide groove penetrates through the outer wall of the air guide plate and faces the outside of the tunnel, and the second air guide groove is communicated with the first air guide groove. The invention aims to solve the technical problem of piston effect in the tunnel.
Description
Technical Field
The invention relates to the field of tunnel engineering, and particularly discloses a simple vibration damper in a tunnel.
Background
The piston effect in the tunnel means that air in the tunnel circulates slowly, and when a train enters the tunnel, air in the tunnel is extruded to the side in the twinkling of an eye, and air gathering forms the air wave, and the air wave can't discharge outside the tunnel in the twinkling of an eye on can only impact the inner wall in tunnel, then rebound on the train again, leads to train vibrations. The speed per hour of the existing high-speed rail, motor train, inter-city train and the like is generally between 100-. With the development of science and technology, the running speed of the train is faster and faster, the piston effect is more obvious, and the normal running of the train can be influenced finally.
Disclosure of Invention
In view of the above, the present invention provides a simple damping device in a tunnel to solve the technical problem of piston effect in the tunnel.
In order to achieve the purpose, the invention provides the following technical scheme:
a simple vibration damper in a tunnel comprises a mounting hole and an air deflector, wherein the mounting hole and the air deflector are formed in the inner wall of the tunnel, a plurality of air ducts are integrally formed at the upper end of the air deflector, the air deflector is hollow, a plurality of air inlets are formed in the outer wall of the air deflector, part of the air inlets are aligned with the air ducts, a first air outlet is further formed in the outer wall of the air deflector, the first air outlet is located on the side wall of the air deflector, and the first air outlet faces the outside of the tunnel; an annular first air guide groove is formed in the inner wall of the air guide cylinder, a second air guide groove is formed in the outer wall of the air guide plate, one end of the second air guide groove penetrates through the outer wall of the air guide plate and faces the outside of the tunnel, and the second air guide groove is communicated with the first air guide groove. In the scheme, when the air waves impact the air deflector, part of the air waves enter the air deflector and the air guide cylinder through the air inlet, the air entering the air deflector can horizontally flow outwards along the air deflector and flow out of the tunnel, the air entering the air guide cylinder can enter the first air guide groove and then enter the second air guide groove and flow out of the tunnel from the second air guide groove. After part of the air wave is consumed, the degree of the whole piston effect is greatly reduced, and although the train still generates vibration, the normal running of the train is not influenced by the vibration. In addition, the structure in the scheme is simple, only the installation holes are difficult to open, the cost of other parts is low, and the scheme has good popularization value.
Optionally, a buffering mechanism is arranged inside the first air duct, the buffering mechanism includes a piston groove, a sealing post, a first elastic member and a baffle, the first elastic member is arranged in the mounting hole, the piston groove is concentrically arranged on the first air duct, the sealing post is hermetically and slidably connected in the piston groove, the sealing post abuts against the first elastic member, the baffle is located in the first air duct, and the baffle is arranged on the sealing post. The first air duct is internally provided with a buffer mechanism which has the function of consuming the kinetic energy of air waves to prevent the air waves from rebounding to the train and has the function of guiding air into the first air guide groove. When the air wave contacts the baffle, the baffle can be pushed, kinetic energy is consumed, the baffle is pushed to a certain depth, then the first air guide groove is exposed, and a large amount of air can enter the first air guide groove and is discharged outwards.
Optionally, the baffle is in an incomplete spherical curved surface shape, and the edge of the baffle faces the first air guiding groove. In this scheme, the baffle is spheroid curved surface form, so the border of baffle is circular, and the edge of baffle just can play the water conservancy diversion effect, with the air direction to first wind-guiding groove in, makes the air can enter into first wind-guiding groove smoothly.
Optionally, a sealing mechanism is arranged in the air deflector, the sealing mechanism includes a second elastic member, a driving plate, a first connecting rod, a second connecting rod, a third connecting rod and a sealing plate, the second elastic member is arranged on the inner wall of the air deflector, the driving plate is arranged on the second elastic member, one end of the first connecting rod is hinged to the driving plate, the other end of the first connecting rod is hinged to the second connecting rod, the second connecting rod is slidably arranged in the air deflector, the lower end of the second connecting rod is hinged to the third connecting rod, the sealing plate is slidably arranged in the air deflector and can shield the air inlet, and the third connecting rod is hinged to the sealing plate. In this scheme, get into the air inlet when the air wave, then when contacting the initiative board, the thrust of air wave can promote the inside movement of initiative board, the initiative board drives first connecting rod and removes to the aviation baffle inner wall, then first connecting rod drives the direction removal of second connecting rod to the closing plate again, the second connecting rod drives the third connecting rod and promotes and the shutoff air inlet with the closing plate to the direction of air inlet, the air that gets into the aviation baffle this moment just can't flow again, avoid on the air wave bounce-back train, guarantee that the aviation baffle can play the effect that alleviates piston effect.
Optionally, the first link is a telescopic link. The first connecting rod is a telescopic rod, so that the moving speed of the sealing plate can be delayed, and more air can enter the air deflector.
Optionally, a first limiting cylinder is arranged in the air deflector, and the second connecting rod is slidably arranged in the first limiting cylinder. The purpose of this scheme of adoption is to play the spacing effect of direction to the second connecting rod.
Optionally, a second limiting cylinder is arranged in the air deflector, the second limiting cylinder is flat, and the sealing plate is slidably arranged in the second limiting cylinder. The purpose of this scheme of adoption is to play the spacing effect of direction to the closing plate.
Optionally, an inner edge is disposed on one side of the air duct, which faces the air guide plate, and a third air guide groove is formed in the inner edge and communicated with the second air guide groove. By adopting the scheme, the air waves enter the air guide cylinder and also have the rebound of a part of air, when the part of air passes through the inner edge, the part of air can enter the third air guide groove and then is discharged from the second air guide groove, and the effects of reducing the air waves and the piston effect are further achieved.
Optionally, the air deflectors are arranged on the upper portions of two sides of the inner wall of the tunnel. When the train got into the tunnel, the air can be outwards be crowded from the circumference of train, and the air wave also rebounds from train circumference and returns, and the air wave that rebounds from train top and bottom and return was less to the train influence, and the air wave of both sides is the main reason that leads to train vibrations, rocking, and the both sides in tunnel are originally just narrower, so set up aviation baffle in both sides upper portion comparatively rationally.
The working principle and the beneficial effects of the scheme are as follows:
the both sides upper portion inside the tunnel is provided with aviation baffle and guide duct in this scheme, and aviation baffle and guide duct can absorb the air wave energy that produces when the train gets into the tunnel, can be with the air introduction outside the tunnel simultaneously, avoid the air wave to bounce back to the train on, lead to train vibrations, rock. The air guide cylinder is provided with an inner edge, the inner edge is provided with a third air guide groove, and air rebounded in the air guide cylinder can be discharged out of the tunnel through the third air guide groove. The air guide plate is provided with a sealing mechanism which can seal the air inlet, so that air waves entering the air guide cylinder and the air guide plate are trapped in the air guide cylinder and the air guide plate and cannot rebound to the train.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic view of the structure of the air deflector and the air duct;
FIG. 3 is a longitudinal cross-sectional view of the air deflection plate and air deflection cylinder;
FIG. 4 is an enlarged view taken at A in FIG. 3;
fig. 5 is an enlarged view at B in fig. 3.
The drawings are numbered as follows: the air guide structure comprises a tunnel 1, an air guide plate 2, an air inlet 3, a first air outlet 4, a second air guide groove 5, an air guide tube 6, a first elastic part 7, a sealing column 8, a baffle plate 9, a first air guide groove 10, an inner edge 11, a third air guide groove 12, a second elastic part 13, an active plate 14, a first connecting rod 15, a second connecting rod 16, a third connecting rod 17, a sealing plate 18, a first air guide plate 19 and a second air guide plate 20.
Detailed Description
The following is further detailed by way of specific embodiments:
examples
A simple vibration damper in a tunnel 1 is shown in figures 1-5 and comprises mounting holes and air deflectors 2 which are arranged at the upper parts of two sides of the inner wall of the tunnel 1.
The upper end of the air guide plate 2 is integrally formed with a plurality of air guide cylinders 6, the air guide cylinders 6 can be inserted into the mounting holes, and one ends of the air guide cylinders 6, which face the air guide plate 2, are opened while the other ends are closed. The inside cavity of aviation baffle 2, air duct 6 and the inside intercommunication of aviation baffle 2, be provided with a plurality of air inlets 3 on the outer wall of aviation baffle 2, air inlet 3 and the inside intercommunication of aviation baffle 2, air inlet 3 aligns the train, and partial air inlet 3 aligns with air duct 6. The outer wall of the air deflector 2 is also provided with a first air outlet 4, and the first air outlet 4 is communicated with the inside of the air deflector 2. The first air outlet 4 is located on the side wall of the air deflector 2, and the first air outlet 4 faces the outside of the tunnel 1. The air deflector 2 is provided with a sealing mechanism, and the sealing mechanism comprises a second elastic part 13, a driving plate 14, a first connecting rod 15, a second connecting rod 16, a third connecting rod 17 and a sealing plate 18. The second elastic element 13 is a second spring, the second elastic element 13 is fixedly arranged on the inner wall of the air deflector 2, and the active plate 14 is fixedly arranged on the second elastic element 13. First connecting rod 15 is the telescopic link, and the one end of first connecting rod 15 is articulated with initiative board 14, and the other end of first connecting rod 15 is articulated with second connecting rod 16, and second connecting rod 16 slides and sets up in aviation baffle 2, and the mode that slides and set up is: a first limiting cylinder is fixedly arranged in the air deflector 2, the first limiting cylinder is arranged in the width direction of the air deflector 2, and the second connecting rod 16 is arranged in the first limiting cylinder in a sliding contact mode. The lower end of the second connecting rod 16 is hinged with a third connecting rod 17, a sealing plate 18 is arranged in the air deflector 2 in a sliding mode and can shield the air inlet 3, the third connecting rod 17 is hinged with the sealing plate 18, and the sealing plate 18 can seal the air inlet 3. The manner in which the seal plate 18 is slidably disposed is: a second limiting cylinder is arranged in the air deflector 2, the second limiting cylinder is flat, and the sealing plate 18 is arranged in the second limiting cylinder in a sliding mode.
An annular first air guide groove 10 is formed in the inner wall of the air duct 6, a second air guide groove 5 is formed in the outer wall of the air guide plate 2, one end of the second air guide groove 5 penetrates through the outer wall of the air guide plate 2 and faces the outside of the tunnel 1, and the second air guide groove 5 is communicated with the first air guide groove 10.
The inside of first air duct 6 is provided with buffer gear, buffer gear includes the piston groove, sealed post 8, first elastic component 7 and baffle 9, first elastic component 7 is fixed to be set up in the mounting hole, first elastic component 7 is first spring, the piston groove sets up on first air duct 6 with one heart, sealed sliding connection of post 8 is in the piston groove, sealed post 8 offsets with first elastic component 7, baffle 9 is located first air duct 6, baffle 9 is fixed to be set up on sealed post 8. The baffle 9 is in the shape of an incomplete spherical curved surface, and the edge of the baffle 9 faces the first air guiding groove 10. An inner edge 11 is arranged on one side of the air duct 6 facing the air guide plate 2, a third air guide groove 12 is formed in the inner edge 11, and the third air guide groove 12 is communicated with the second air guide groove 5.
In the specific implementation:
the train enters the tunnel 1 to generate air waves, the air waves impact the air deflector 2, part of the air waves rebound to the train through the air deflector 2 to cause train vibration, and the other part of the air waves enter the air deflector 2 through the air inlet 3. In the air wave entering the air deflector 2, a part of the air wave impacts the active plate 14, the active plate 14 drives the first connecting rod 15, the second connecting rod 16, the third connecting rod 17 and the sealing plate 18 to seal the air inlet 3, and the part of the air wave flows out of the first air outlet 4. The other part of the air wave enters the air duct 6, then flows into the second air duct 5 from the first air duct 10 and then flows out, meanwhile, the air wave impacts the baffle 9, the kinetic energy is consumed, and the other part of the air wave flows into the third air duct 12 or flows into the air deflector 2 after rebounding through the baffle 9, but the air wave cannot rebound to the train any more no matter where the air wave flows, and is exhausted out of the tunnel 1, and finally the piston effect degree is reduced.
The spare part of this scheme all need not to use power, simple structure, installation and production all very convenient, and the cost is lower, can alleviate piston effect to a certain extent, reduces vibration, the range of rocking that produces when the train gets into tunnel 1.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (9)
1. The utility model provides a simple and easy damping device in tunnel which characterized in that: the tunnel air guide device comprises a mounting hole and an air guide plate which are formed in the inner wall of a tunnel, wherein a plurality of air guide cylinders are integrally formed at the upper end of the air guide plate, the air guide plate is hollow, a plurality of air inlets are formed in the outer wall of the air guide plate, part of the air inlets are aligned with the air guide cylinders, a first air outlet is also formed in the outer wall of the air guide plate and is positioned on the side wall of the air guide plate, and the first air outlet faces the outside of the tunnel; an annular first air guide groove is formed in the inner wall of the air guide cylinder, a second air guide groove is formed in the outer wall of the air guide plate, one end of the second air guide groove penetrates through the outer wall of the air guide plate and faces the outside of the tunnel, and the second air guide groove is communicated with the first air guide groove.
2. The simple vibration damper in tunnel according to claim 1, characterized in that: the air guide device is characterized in that a buffer mechanism is arranged inside the first air guide cylinder, the buffer mechanism comprises a piston groove, a sealing column, a first elastic part and a baffle plate, the first elastic part is arranged in the mounting hole, the piston groove is concentrically arranged on the first air guide cylinder, the sealing column is connected in the piston groove in a sealing and sliding mode, the sealing column abuts against the first elastic part, the baffle plate is located in the first air guide cylinder, and the baffle plate is arranged on the sealing column.
3. The simple vibration damper in tunnel according to claim 2, characterized in that: the baffle is in an incomplete spherical curved surface shape, and the edge of the baffle faces the first air guide groove.
4. The simple vibration damper in tunnel according to claim 3, characterized in that: the air deflector is internally provided with a sealing mechanism, the sealing mechanism comprises a second elastic piece, a driving plate, a first connecting rod, a second connecting rod, a third connecting rod and a sealing plate, the second elastic piece is arranged on the inner wall of the air deflector, the driving plate is arranged on the second elastic piece, one end of the first connecting rod is hinged to the driving plate, the other end of the first connecting rod is hinged to the second connecting rod, the second connecting rod is arranged in the air deflector in a sliding mode, the lower end of the second connecting rod is hinged to the third connecting rod, the sealing plate is arranged in the air deflector in a sliding mode and can shield the air inlet, and the third connecting rod is hinged to the sealing plate.
5. The simple vibration damper in tunnel according to claim 4, characterized in that: the first connecting rod is a telescopic rod.
6. The simple vibration damper in tunnel according to claim 5, characterized in that: the air deflector is internally provided with a first limiting cylinder, and the second connecting rod is arranged in the first limiting cylinder in a sliding manner.
7. The simple vibration damper in tunnel according to claim 6, characterized in that: the air deflector is internally provided with a second limiting cylinder which is flat, and the sealing plate is arranged in the second limiting cylinder in a sliding manner.
8. The simple vibration damper in tunnel according to claim 7, characterized in that: an inner edge is arranged on one side, facing the air guide plate, of the air guide cylinder, a third air guide groove is formed in the inner edge and communicated with the second air guide groove.
9. The simple vibration damper in tunnel according to claim 8, characterized in that: the air deflectors are arranged on the upper portions of two sides of the inner wall of the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111056079.6A CN113586147A (en) | 2021-09-09 | 2021-09-09 | Simple vibration damper in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111056079.6A CN113586147A (en) | 2021-09-09 | 2021-09-09 | Simple vibration damper in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113586147A true CN113586147A (en) | 2021-11-02 |
Family
ID=78241558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111056079.6A Withdrawn CN113586147A (en) | 2021-09-09 | 2021-09-09 | Simple vibration damper in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113586147A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117896930A (en) * | 2024-01-15 | 2024-04-16 | 青岛万聚鼎畅科技有限公司 | Energy-saving environment-friendly informationized device for cable tunnel |
-
2021
- 2021-09-09 CN CN202111056079.6A patent/CN113586147A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117896930A (en) * | 2024-01-15 | 2024-04-16 | 青岛万聚鼎畅科技有限公司 | Energy-saving environment-friendly informationized device for cable tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113586147A (en) | Simple vibration damper in tunnel | |
| CN210769641U (en) | Novel buffering hydraulic cylinder | |
| CN113092052B (en) | Hole wall opening-closing ratio continuous adjustable device applied to transonic wind tunnel test section | |
| CN113279510B (en) | Wind-resistant connecting assembly for assembling glass curtain wall | |
| CN101737533A (en) | Water hammer-resistant mute check valve | |
| CN210440627U (en) | Novel stationary flow check valve component | |
| CN209354676U (en) | A kind of valve plate of high life | |
| CN108273604B (en) | Improved structure of reversible hammer crusher | |
| CN102477829A (en) | Hydraumatic variable force buffer | |
| CN220792170U (en) | Check valve with inclined valve clack | |
| CN214788761U (en) | Hydraulic shock absorber | |
| CN220185262U (en) | Engine oil rail sound-proof housing | |
| CN202510457U (en) | Buffer air cylinder | |
| CN115076409B (en) | Multi-petal type isolation water valve | |
| CN221170190U (en) | Hydraulic cylinder with protective structure | |
| CN220269416U (en) | Internal smoke baffle plate with damping and slow descent functions | |
| CN116695604B (en) | Ecological noise reduction barrier for traffic noise control | |
| CN203022494U (en) | Box door anti-collision protecting device | |
| CN204784385U (en) | Vapour -pressure type buffer damper ware | |
| CN220337346U (en) | Novel damper easy to install | |
| CN220947895U (en) | Impact-resistant anti-collision beam assembly | |
| CN219673396U (en) | Built-in double-flap check valve | |
| CN220225173U (en) | Submerged gate for yellow river hydraulic engineering | |
| CN221030003U (en) | Steel dam gate with buffering function | |
| CN217207487U (en) | Automobile shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211102 |
|
| WW01 | Invention patent application withdrawn after publication |